Fractured implant abutment taking-out structure

Abstract

The utility model discloses a structure for taking out a broken abutment of an implant, which comprises the implant, a threaded hole is arranged in the implant, a polygon prism-shaped hole is arranged above the threaded hole, and the width of the polygon prism-shaped hole is larger than that of the threaded hole; an abutment is detachably mounted above the implant, the abutment comprises an abutment body and an abutment neck which are sequentially connected from top to bottom, a through hole is formed in the abutment body, a circular hole is formed in the abutment neck, and the width of the through hole is greater than that of the circular hole; the base platform neck part is in the shape of a polygon prism, and the base platform neck part is downwards assembled in the polygon prism-shaped hole. According to the utility model, the structural design is reasonable, the characteristic that the neck part of the abutment is hollow is ingeniously utilized, and the working air bag and the residual neck part of the abutment can be driven to be upwards pulled out together in the process of upwards lifting the inflation rod by utilizing the friction force generated between the working air bag and the inner wall of the neck part of the abutment when the working air bag is inflated and expanded.

Description

Technical Field

[0001] The utility model relates to the technical field of dental implants, in particular to a structure for removing a broken abutment of an implant. Background Art

[0002] See also Figures 1 to 9 The structure of the dental implant is simple, and generally comprises an implant (1), wherein a threaded hole (101) is provided inside the implant (1), and a polygonal prism hole (102) is provided above the threaded hole (101), and the width of the polygonal prism hole (102) is greater than the width of the threaded hole (101); an abutment (2) is detachably mounted above the implant (1), and the abutment (2) comprises an abutment body (21) and an abutment neck (22) connected in sequence from top to bottom, and a through hole (211) is provided inside the abutment body (21), and the abutment neck (22) is provided with a through hole (211). A circular hole (221) is provided inside, and the width of the through hole (211) is greater than the width of the circular hole (221); the base neck (22) is in the shape of a polygonal column, and the base neck (22) is downwardly assembled in the polygonal column-shaped hole (102); a screw (3) passes through the through hole (211), and the screw (3) includes a screw head (31) and a threaded rod (32) connected in sequence from top to bottom, and the threaded rod (32) passes downward through the circular hole (221) and is locked in the threaded hole (101); a screwing hole (311) is provided at the top of the screw head (31).

[0003] When implementing a crown implant: first, a dental implant hole (5) is drilled in the area where the denture is to be implanted (the area may be between two teeth (8) on the gums (7)), and then the implant (1) is inserted into the dental implant hole (5) (after a long time, the inner wall tissue of the dental implant hole (5) will be fixed to the implant (1)), then the base (2) is installed on the implant (1), and the base (2) and the implant (1) are connected and fixed by screws (3) (the screws (3) will pass through the internal space of the base (2) and the implant (1)), and finally the crown (6) is installed on the base (2) (the crown (6) and the base (2) can be bonded and fixed by adhesive), and the implant is completed.

[0004] In the process of actual medical application, it is found that the above-mentioned prior art has the following problems: Since the interior of the base (2) is hollow, the connection between the base body (21) and the base neck (22) is easily broken during daily use (such as when a dentist is performing daily crown implantation or during daily use of a patient after a crown implantation). After the breakage occurs, it is necessary to first remove the disconnected base body (21) and the crown (6), then remove the screw (3) upward by screwing, and finally remove the base neck (22) remaining in the implant (1). However, the difficulty in removing the remaining base neck (22) is that the base neck (22) cannot be screwed and lacks a gripping point, which makes it very difficult to remove the remaining base neck (22). It is generally removed by ultrasound or other methods, but ultrasound and other methods are not only expensive, but also easy to damage the implant (1), resulting in the implant (1) being unable to continue to be used.

[0005] In summary, how to reduce the difficulty of removing the abutment neck (22) remaining in the implant (1) while not damaging the implant (1) is an urgent problem. Utility Model Content

[0006] The utility model aims to provide a structure for removing a broken abutment of an implant, so as to reduce the difficulty of removing the neck of the abutment remaining in the implant without damaging the implant.

[0007] In order to achieve the above-mentioned purpose, the technical solution of the utility model provides a structure for removing a broken abutment of an implant, comprising an implant, a threaded hole is provided inside the implant, a polygonal hole is provided above the threaded hole, and the width of the polygonal hole is greater than the width of the threaded hole; an abutment is detachably installed above the implant, and the abutment comprises an abutment body and an abutment neck connected in sequence from top to bottom, a through hole is provided inside the abutment body, a circular hole is provided inside the abutment neck, and the width of the through hole is greater than the width of the circular hole; the abutment neck is in the shape of a polygonal column, and the abutment neck is assembled downwardly on the implant. In the polygonal hole, a screw is passed through the through hole, and the screw includes a screw head and a threaded rod connected in sequence from top to bottom, and the threaded rod passes downward through the circular hole and is locked in the threaded hole; a twisting hole is provided on the top of the screw head, and the implant broken base removal structure also includes a disassembly tool, and the disassembly tool includes a working airbag and an inflation rod, and the working airbag is connected to the inflation rod, and the working airbag can extend into the circular hole when contracted, and the working airbag can generate friction with the inner wall of the circular hole when expanded, so that the base neck remaining in the polygonal hole can be pulled out upward.

[0008] Furthermore, the disassembly tool also includes an inflatable airbag, one end of the inflatable rod is connected to the working airbag, and the other end of the inflatable rod is connected to the inflatable airbag.

[0009] Furthermore, the inflatable rod includes a first rod and a second rod, the first rod is connected to the working airbag, the second rod is connected to the inflatable airbag, and the first rod and the second rod are connected via a bending hose.

[0010] Furthermore, the working airbag is cylindrical when inflated.

[0011] Furthermore, the end of the first rod passes through the interior of the working airbag, and a plurality of vent holes are evenly arranged on the side wall of the end of the first rod, and the vent holes can allow the gas in the working airbag to circulate.

[0012] Furthermore, the volume of the inflatable airbag is greater than the volume of the working airbag, and the inflatable airbag is spherical when expanded.

[0013] Furthermore, the outer wall of the working airbag is provided with a rough surface.

[0014] Furthermore, the implant is in the shape of a cone extending vertically in the axial direction, the diameter of the implant gradually decreases from top to bottom, and the outer wall of the implant is in the shape of a thread, so that the implant can be threadedly connected downward to the implant hole.

[0015] Furthermore, a bottom side wall of the implant is provided with a plurality of grooves, and a top side wall of the implant is provided with an annular smooth surface.

[0016] Furthermore, the bottom of the base body is in the shape of an inverted truncated cone, and the top of the base body is in the shape of a prism and can be upwardly matched with the internal limit of the crown.

[0017] In summary, the use of the technical solution of the utility model has the following beneficial effects: the structural design of the utility model is reasonable. First, it includes an implant, a threaded hole is provided inside the implant, a polygonal hole is provided above the threaded hole, and the width of the polygonal hole is greater than the width of the threaded hole; an abutment is detachably installed above the implant, the abutment includes an abutment body and an abutment neck connected in sequence from top to bottom, a through hole is provided inside the abutment body, a circular hole is provided inside the abutment neck, and the width of the through hole is greater than the width of the circular hole; the abutment neck is polygonal, the abutment neck is downwardly assembled in the polygonal hole, a screw passes through the through hole, the screw includes a screw head and a threaded rod connected in sequence from top to bottom, the threaded rod passes downward The circular hole is locked in the threaded hole; thus, when the dental crown is implanted: first, a dental implant hole (5) is drilled in the area where the denture is to be implanted (the area may be between two teeth (8) on the gums (7)), and then the implant (1) is inserted into the dental implant hole (5) (after a long time, the inner wall tissue of the dental implant hole (5) will be fixed to the implant (1)), then the base (2) is installed on the implant (1), and the base (2) and the implant (1) are connected and fixed by screws (3) (the screws (3) will pass through the internal space of the base (2) and the implant (1)), and finally the dental crown (6) is installed on the base (2) (the dental crown (6) and the base (2) can be bonded and fixed by adhesive), and the implantation is completed. Second, a screw hole is provided at the top of the screw head, and the implant broken abutment removal structure also includes a disassembly tool, which includes a working airbag and an inflation rod. The working airbag is connected to the inflation rod. The working airbag can extend into the circular hole when it is contracted, and the working airbag can generate friction with the inner wall of the circular hole when it is expanded, so that the abutment neck remaining in the polygonal hole can be pulled out upward; thus, when the connection between the abutment body and the abutment neck is broken: first, the disconnected abutment body (21) and the crown (6) are removed, and then the screw (3) is removed upward by screwing (the screw hole and the screwdriver can be used to cooperate with the screwing action of the driving screw (3)), and finally, the abutment neck (22) remaining in the implant (1) is removed by using the disassembly tool. Among them, the specific operation of the disassembly tool is to first use the working airbag to extend into the circular hole when it is contracted (that is, the working airbag is deflated), and then inflate the working airbag through the inflation rod to make the working airbag gradually expand, and then the working airbag gradually increases the friction force with the inner wall of the circular hole during the expansion process, and finally, lift the inflation rod upward, so that the inflation rod drives the working airbag and the remaining base neck to be pulled out upward together, so that the remaining base neck is removed.From the above analysis, it can be seen that the utility model cleverly utilizes the feature that the neck of the abutment is hollow, and then utilizes the friction force generated by the working air bag and the inner wall of the abutment neck when it is inflated, so that the working air bag and the remaining abutment neck can be pulled out upward together in the process of lifting the inflation rod upward. The operation is very simple and the production cost is low. At the same time, it will not damage the implant, so that the implant can continue to be used later. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the explosion structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the scene structure of the utility model before the implementation of the dental crown implantation;

[0020] Figure 3 It is a three-dimensional structural schematic diagram of the implant of the utility model;

[0021] Figure 4 It is a schematic diagram of the structure of the base neck of the utility model when viewed from above;

[0022] Figure 5 It is a schematic diagram of the structure of the base of the utility model when viewed from above;

[0023] Figure 6 It is a schematic diagram of the three-dimensional structure of the implant and the abutment after being assembled in the utility model;

[0024] Figure 7 It is a three-dimensional structural schematic diagram of the base and screws of the utility model during assembly;

[0025] Figure 8 It is a top view of the three-dimensional structure of the utility model after the base and the screws are assembled;

[0026] Fig. 9 This is a schematic diagram of the scene structure of the utility model when a dental crown implant is being implemented;

[0027] Fig.10 It is a three-dimensional structural schematic diagram of the disassembly tool of the utility model when the working airbag is inflated;

[0028] Fig.11 It is a three-dimensional structural schematic diagram of the disassembly tool of the utility model when the working airbag is cut open;

[0029] Fig.12 It is a three-dimensional structural schematic diagram of the disassembly tool of the utility model when the working airbag is deflated;

[0030] Fig.13 It is a three-dimensional structural schematic diagram of the disassembly tool of the utility model when the working airbag is cut open;

[0031] Explanation of the reference numerals: 1-implant, 2-abutment, 3-screw, 4-removal tool, 5-implant hole, 6-crown, 7-gum, 8-tooth.

[0032] 101-threaded hole, 102-polygonal hole, 103-groove, 104-smooth surface; 21-base body, 211-through hole, 22-base neck, 221-circular hole; 31-screw head, 311-twisting hole, 32-threaded rod; 41-working airbag, 42-inflating rod, 43-inflating airbag, 411-rough surface, 421-first rod, 422-second rod, 423-curving hose, 424-ventilation hole. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention, but this does not constitute a limitation on the protection scope of the present invention.

[0034] In the present invention, for a clearer description, the following explanation is made: the observer faces the attached Figure 1 For observation, the left side of the observer is set as left, the right side of the observer is set as right, the front of the observer is set as front, the rear of the observer is set as rear, the top of the observer is set as top, and the bottom of the observer is set as bottom. It should be pointed out that the terms "front end", "rear end", "left side", "right side", "middle", "top", "bottom" and the like in the text indicate the orientation or position relationship based on the orientation or position relationship set in the drawings, which is only for the convenience of clearly describing the utility model, and does not indicate or imply that the structure or component referred to must have a specific orientation or be constructed in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third", and "fourth" are only used for the purpose of clarity or simplification of description, and cannot be understood as indicating or implying relative importance or quantity.

[0035] See also Figures 1 to 13The present embodiment provides a structure for removing a broken implant abutment, comprising an implant 1, wherein a threaded hole 101 is provided inside the implant 1, and a polygonal prism-shaped hole 102 is provided above the threaded hole 101, and the width of the polygonal prism-shaped hole 102 is greater than the width of the threaded hole 101; an abutment 2 is detachably mounted above the implant 1, and the abutment 2 comprises an abutment body 21 and an abutment neck 22 connected in sequence from top to bottom, wherein a through hole 211 is provided inside the abutment body 21, and a circular hole 221 is provided inside the abutment neck 22, and the width of the through hole 211 is greater than the width of the circular hole 221; the abutment neck 22 is in the shape of a polygonal prism, and the abutment neck 22 is assembled downwardly into the polygonal prism-shaped hole 1 02, a screw 3 passes through the through hole 211, and the screw 3 includes a screw head 31 and a threaded rod 32 connected in sequence from top to bottom, and the threaded rod 32 passes downward through the circular hole 221 and is locked in the threaded hole 101; a twisting hole 311 is provided on the top of the screw head 31, and the implant broken base removal structure also includes a disassembly tool 4, and the disassembly tool 4 includes a working air bag 41 and an inflation rod 42. The working air bag 41 is connected to the inflation rod 42, and the working air bag 41 can extend into the circular hole 221 when contracted, and the working air bag 41 can generate friction with the inner wall of the circular hole 221 when expanded, so that the base neck 22 remaining in the polygonal hole 102 can be pulled out upward. Function: First, it includes an implant, a threaded hole is provided inside the implant, a polygonal hole is provided above the threaded hole, and the width of the polygonal hole is greater than the width of the threaded hole; an abutment is detachably installed above the implant, and the abutment includes an abutment body and an abutment neck connected in sequence from top to bottom, a through hole is provided inside the abutment body, and a circular hole is provided inside the abutment neck, and the width of the through hole is greater than the width of the circular hole; the abutment neck is in a polygonal column shape, and the abutment neck is downwardly assembled in the polygonal hole, and a screw passes through the through hole, and the screw includes a screw head and a threaded rod connected in sequence from top to bottom, and the threaded rod passes downward The circular hole is locked in the threaded hole; thus, when implementing the crown implantation: first, drill the implant hole 5 in the area where the denture needs to be implanted (the area can be between two teeth 8 on the gums 7), and then install the implant 1 into the implant hole 5 (after a long time, the inner wall tissue of the implant hole 5 will be fixed with the implant 1), then install the base 2 on the implant 1, and connect and fix the base 2 and the implant 1 with the screw 3 (the screw 3 will pass through the internal space of the base 2 and the implant 1), and finally install the crown 6 on the base 2 (the crown 6 and the base 2 can be bonded and fixed by adhesive), and the implantation is completed.Second, a twisting hole is provided through the top of the screw head, and the broken implant abutment removal structure also includes a disassembly tool, which includes a working airbag and an inflation rod. The working airbag is connected to the inflation rod, and the working airbag can extend into the circular hole when contracted, and the working airbag can generate friction with the inner wall of the circular hole when expanded, so that the abutment neck remaining in the polygonal hole can be pulled out upward; so that when the connection between the abutment body and the abutment neck is broken: first take out the disconnected abutment body 21 and the crown 6, then take out the screw 3 upward by screwing it (the twisting hole and the screwdriver can be used to cooperate to drive the screw 3 to screw), and finally use the disassembly tool to take out the abutment neck 22 remaining in the implant 1. Among them, the specific operation of the disassembly tool is to first use the working airbag to extend into the circular hole when it is contracted (i.e. the working airbag is deflated), and then inflate the working airbag through the inflation rod, so that the working airbag gradually expands, and then the working airbag gradually increases the friction generated with the inner wall of the circular hole during the expansion process, and finally, lift the inflation rod upward, so that the inflation rod drives the working airbag and the remaining abutment neck to be pulled upward together, so that the remaining abutment neck is removed. From the above analysis, it can be seen that the utility model cleverly utilizes the feature that the abutment neck is hollow, and then utilizes the friction generated by the working airbag and the inner wall of the abutment neck when it is inflated, so that the working airbag and the remaining abutment neck can be driven to be pulled upward together in the process of lifting the inflation rod upward. The operation is very simple and the production cost is low. At the same time, it will not damage the implant, so that the implant can continue to be used later.

[0036] Specifically, the disassembly tool 4 also includes an inflatable airbag 43, one end of the inflatable rod 42 is connected to the working airbag 41, and the other end of the inflatable rod 42 is connected to the inflatable airbag 43. Function: Through the setting of the inflatable airbag 43, the dentist or other operator only needs to squeeze the inflatable airbag 43 with a little force, and the gas in the inflatable airbag 43 will flow into the working airbag 41 through the inflatable rod 42, so that the working airbag 41 swells and forms friction with the inner wall of the base neck, so that the base neck follows the working airbag 41 and the inflatable rod 42 to move upward and separate from the polygonal columnar hole 102 of the implant 1; and after the base neck is taken out, if the working airbag 41 needs to be separated from the base neck, the operator only needs to loosen the inflatable airbag 43, at this time, the gas in the working airbag 41 can return to the inflatable airbag 43 through the inflatable rod 42, and then the operator only needs to gently lift up, and the working airbag 41 will be separated from the base neck.

[0037] Specifically, the inflatable rod 42 includes a first rod 421 and a second rod 422. The first rod 421 is connected to the working airbag 41, and the second rod 422 is connected to the inflatable airbag 43. The first rod 421 and the second rod 422 are connected via a turning hose 423. Function: The first rod 421, the second rod 422, and the turning hose 423 are arranged to facilitate flexible use by dentists and other operators at multiple angles.

[0038] Specifically, the working airbag 41 is cylindrical when inflated. Function: Since the inside of the base neck is a circular hole 221, providing the working airbag 41 which is cylindrical when inflated is more conducive to increasing the friction between the working airbag 41 and the inner wall of the base neck.

[0039] Specifically, the end of the first rod 421 passes through the interior of the working airbag 41, and the side wall of the end of the first rod 421 is evenly provided with a plurality of vents 424, and the vents 424 can allow the gas in the working airbag 41 to circulate. Function: Through such a configuration, the working airbag 41 can be directly inserted into the circular hole 221 of the base neck following the first rod 421 when deflated, which is very convenient, and the plurality of vents 424 also facilitate the rapid flow of gas in the working airbag 41.

[0040] Specifically, the volume of the inflatable airbag 43 is greater than the volume of the working airbag 41 , and the inflatable airbag 43 is spherical when inflated. Function: This arrangement makes it convenient for operators such as dentists to use the inflatable airbag 43 to inflate the working airbag 41 .

[0041] Specifically, the outer wall of the working airbag 41 is provided with a rough surface 411. Function: The rough surface can increase the friction with the inner wall of the base neck.

[0042] Specifically, the implant 1 is in the shape of a cone extending vertically in the axial direction, the diameter of the implant 1 gradually decreases from top to bottom, and the outer wall of the implant 1 is in the shape of a thread, so that the implant 1 can be threaded downwardly with the implant hole 5. Function: The threaded implant 1 is convenient for being threaded downwardly with the implant hole 5 by screwing.

[0043] Specifically, the bottom side wall of the implant 1 is provided with a plurality of grooves 103, and the top side wall of the implant 1 is provided with an annular smooth surface 104. Function: The grooves 103 are provided to facilitate the cooperation with the inner wall tissue of the implant hole 5, while the smooth surface 104 can better cooperate with the gums.

[0044] Specifically, the bottom of the base body 21 is in the shape of an inverted truncated cone, and the top of the base body 21 is in the shape of a prism and can be upwardly matched with the internal limit of the crown 6. Function: The bottom of the base body 21 is configured in this way to facilitate matching with the upper part of the implant hole 5, and the top of the base body 21 is configured in this way to facilitate matching with the inside of the crown 6, thereby preventing the crown 6 from rotating easily.

[0045] The above is a preferred embodiment of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications are also considered to be within the protection scope of the present invention.

Claims

1. A structure for removing a fractured implant abutment, comprising an implant (1), characterized in that: The implant (1) is provided with a threaded hole (101) inside, and a polygonal hole (102) is provided above the threaded hole (101), and the width of the polygonal hole (102) is greater than the width of the threaded hole (101); a base (2) is detachably mounted above the implant (1), and the base (2) comprises a base body (21) and a base neck (22) connected in sequence from top to bottom, a through hole (211) is provided inside the base body (21), and a circular hole (221) is provided inside the base neck (22), and the width of the through hole (211) is greater than the width of the circular hole (221); the base neck (22) is in the shape of a polygonal column, and the base neck (22) is downwardly assembled in the polygonal hole (102), and a screw is passed through the through hole (211). (3), the screw (3) comprises a screw head (31) and a threaded rod (32) connected in sequence from top to bottom, the threaded rod (32) passes downward through the circular hole (221) and is locked in the threaded hole (101); a screwing hole (311) is provided at the top of the screw head (31), the implant fracture base removal structure also comprises a disassembly tool (4), the disassembly tool (4) comprises a working air bag (41) and an inflation rod (42), the working air bag (41) is connected to the inflation rod (42), the working air bag (41) can extend into the circular hole (221) when contracted, and the working air bag (41) can generate friction with the inner wall of the circular hole (221) when expanded, so that the base neck (22) remaining in the polygonal hole (102) can be pulled out upward.

2. The implant fracture abutment removal structure according to claim 1, characterized in that: The disassembly tool (4) further comprises an inflatable airbag (43), one end of the inflatable rod (42) is connected to the working airbag (41), and the other end of the inflatable rod (42) is connected to the inflatable airbag (43).

3. The implant fracture abutment removal structure according to claim 2, characterized in that: The inflatable rod (42) comprises a first rod (421) and a second rod (422); the first rod (421) is connected to the working airbag (41); the second rod (422) is connected to the inflatable airbag (43); the first rod (421) and the second rod (422) are connected via a turning hose (423).

4. The implant fracture abutment removal structure according to claim 3, characterized in that: The working airbag (41) is cylindrical when inflated.

5. The implant fracture abutment removal structure according to claim 4, characterized in that: The end of the first rod (421) passes through the interior of the working airbag (41), and a plurality of vent holes (424) are evenly arranged on the side wall of the end of the first rod (421), wherein the vent holes (424) allow the gas in the working airbag (41) to circulate.

6. The implant fractured abutment removal structure according to any one of claims 2 to 5, characterized in that: The volume of the inflatable airbag (43) is greater than the volume of the working airbag (41), and the inflatable airbag (43) is spherical when inflated.

7. The implant fractured abutment removal structure according to any one of claims 1 to 5, characterized in that: The outer wall of the working airbag (41) is provided with a rough surface (411).

8. The implant fractured abutment removal structure according to any one of claims 1 to 5, characterized in that: The implant (1) is in the shape of a cone extending vertically in the axial direction, the diameter of the implant (1) gradually decreases from top to bottom, and the outer wall of the implant (1) is in the shape of a thread, so that the implant (1) can be threadedly connected downwardly to the implant hole (5).

9. The implant fractured abutment removal structure according to claim 8, characterized in that: The bottom side wall of the implant (1) is provided with a plurality of grooves (103), and the top side wall of the implant (1) is provided with an annular smooth surface (104).

10. The implant fractured abutment removal structure according to any one of claims 1 to 5 and 9, characterized in that: The bottom of the base body (21) is in the shape of an inverted truncated cone, and the top of the base body (21) is in the shape of a prism and can be upwardly matched with the internal limit position of the crown (6).

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